Answer:
48
Step-by-step explanation:
Because 6 plus 6 is 12 and if he rode 3 times how much he rode on those days it would be 12 times 3 which is 36 than it's 36 plus 12 to get 48
Answer:
Step-by-step explanation:
If two lines are parallel, their slopes (gradients) will be the same.
Ensure both line equations are in the format y = mx + b (where m is the slope and b is the y-intercept):
Line L1: y = 2x + 5
Line L2: 2y - 4x = 6
⇒ 2y = 4x + 6
⇒ y = 2x + 3
As the slopes of L1 and L2 are both 2 and therefore the same, this proves that the two lines are parallel.
Answer:
The amount of salt required is 0.3685 grams.
Step-by-step explanation:
20.9% of 1 gram of salt is chlorine, which means the grams of chlorine in 1 gram of salt are
Now, to make 220 ppm solution, it must be that
where is the grams of chlorine required.
We rearrange the equation and solve for
since 1 gram of salt has 0.209 grams of chlorine, 0.07702g of chlorine corresponds to
Thus the amount of salt required is 0.3685 grams.
Using the permutation formula, there are 157,410 ways for the medals to be distributed.
<h3>What is the permutation formula?</h3>
The number of possible permutations of x elements from a set of n elements is given by:
In this problem, 3 athletes are chosen from a set of 55, hence the number of ways is given by:
P(55,3) = 55!/52! = 157,410
157,410 ways for the medals to be distributed.
More can be learned about the permutation formula at brainly.com/question/24245547
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